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Oval|Lab Grown|IGI

3.12ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG710560333

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG710560333

Diamond specifications and retailer prices

From $3,708 AUD
$2,605 USD
As of October 29, 2026
Save $17,019 AUD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $20,728 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.12ct lab-grown oval diamond

This 3.12ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG710560333 or 710560333. Listed at 20 retailers as of October 29, 2026, with prices from $3,708 to $20,728, a $17,019 spread on the same certified stone. Brilliant Earth lists it at $20,728. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.12
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG710560333
Dimensions11.49 × 8.28 × 5.10 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.49 mm8.28 mm3.12 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG710560333
Side View
Table 61.0%Crown 34.9°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $20,728 AUD|Low: $2,988 AUD|High: $20,728 AUD|Avg: $8,334 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 16$3,708 AUD
Retailer 5$4,036 AUD
Retailer 4$4,302 AUD
Retailer 14$4,534 AUD
Retailer 12$4,567 AUD
Retailer 2$5,668 AUD
Retailer 13$6,076 AUD
Retailer 9$6,417 AUD
Retailer 3$7,161 AUD
Retailer 11$7,190 AUD
Retailer 7$8,201 AUD
Retailer 15$11,093 AUD
Retailer 10$12,103 AUD
Retailer 8$12,476 AUD
Retailer 6$16,229 AUD
Brilliant Earth$20,728 AUD

44 data points across 16 retailers

20 retailers$3,708 AUD to $20,728 AUD

A
Cheapest Retailer
-
$3,708 AUD
$2,605 USD
A
Retailer 2
-
$3,825 AUD
$2,687 USD
View
A
Retailer 3
-
$4,036 AUD
$2,835 USD
View
A
Retailer 4
-
$4,302 AUD
$3,022 USD
View
A
Retailer 5
-
$4,534 AUD
$3,185 USD
View
B+
Retailer 6
-
$4,567 AUD
$3,208 USD
View
Final sale: no returns
B+
Retailer 7
-
$5,612 AUD
HK$30,800 HKD
View
B+
Retailer 8
-
$5,668 AUD
£3,135 GBP
View
B+
Retailer 9
-
$6,076 AUD
$4,268 USD
View
B+
Retailer 10
-
$6,417 AUD
£3,549 GBP
View
B+
Retailer 11
-
$7,161 AUD
$5,030 USD
View
B+
Retailer 12
-
$7,190 AUD
€4,810 EUR
View
B
Retailer 13
-
$8,201 AUD
£4,536 GBP
View
B
Retailer 14
-
$11,093 AUD
$7,792 USD
View
B
Retailer 15
-
$12,103 AUD
£6,694 GBP
View
B
Retailer 16
-
$12,469 AUD
$8,759 USD
View
B
Retailer 17
-
$12,476 AUD
$8,764 USD
View
B
Retailer 18
-
$16,229 AUD
SGD 15,405 SGD
View
B
Retailer 19
-
$16,546 AUD
$11,623 USD
View
Most Expensive
B
Brilliant Earth
17310142Y · Oct 29
$20,728 AUD
$14,560 USD
View
19 more retailers have this diamond
Prices start from $3,708 AUDSave up to $17,019 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.12ct Oval
$3,708 AUD